Notes on MPPT
Please be careful if looking at other MPPT systems. There are other low cost units stating they are MPPT but in fact they are not. Our MPPT control is quality.
200 watt example in optimum weather conditions.
2 x 100 watt panels are plated at approximately 5.6 amp each, i.e. 11.2 amps
Our standard PWM has shown up to 12.5 amps
Our MPPT has shown over 17 amps
If you happen to have more panels fitted and exceed the maximum solar input (weather permitting), our MPPT protects itself and also limits the output to its maximum rating.
We know of a few “so called” MPPT controllers which stop charging and trip, and they will not re-start automatically. So unless you are there to manually reset they do nothing.
We have also tested MPPT Controls which are “MPPT by name only” and are actually PWM.
Notes on Solar Panels
Again please be careful when looking for solar panels.
All our new panels are Mono-crystalline, 165 watt, 22 volt with Grade “A” premium effieciency cells.
Due to the increased efficiency, the panels are physically only slightly larger than the 100 watt panels
1 – The physical size is still easily manageable and fits nicely down the side of a narrow-boat
2 – THE VOLTAGE *
* The voltage is important. 18 to 22 volt is ideal for a 12 volt battery system. Larger panels can be much higher voltage and are not really suitable for a 12 volt system. Some are 36 volt which we would use on a 24 volt system but could be used on a 12 volt system with the right choice of controller. Some are even higher voltages and a waste of money. Normal charge controllers will possibly trip on over-voltage so again be aware of voltage on the solar panel and the working voltage of the controller.
Our MPPT does allow panels to be connected in “series / parallel” providing a better working voltage in low light level because they accept higher solar input voltages without any problems.
Purchase a full system from us and you even receive the cabling with pre-soldered sockets. Have it fitted or “self fit”, either way if anything does go wrong we are here to help.
This is why we offer full systems…….you receive peace of mind.